已知函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225323510512928/SYS201311012253235105129017_ST/0.png)
,函数f(x)的反函数为f
-1(x).
(I)求函数f
-1(x)的解析式及定义域;
(II)若函数g(x)=4f
-1(x)-4(k+2)x+k
2-2k+2在[0,2]上的最小值为3,求实数k的值.
考点分析:
相关试题推荐
已知函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225323510512928/SYS201311012253235105129016_ST/0.png)
(0<φ<π,ω>0)为偶函数,且函数y=f(x)图象的两相邻对称轴间的距离为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225323510512928/SYS201311012253235105129016_ST/1.png)
.
(Ⅰ)求
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225323510512928/SYS201311012253235105129016_ST/2.png)
的值;
(Ⅱ)将函数y=f(x)的图象向右平移
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225323510512928/SYS201311012253235105129016_ST/3.png)
个单位后,再将得到的图象上各点的横坐标伸长到原来的4倍,纵坐标不变,得到函数y=g(x)的图象,求g(x)的单调递减区间.
查看答案
已知已知
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225323510512928/SYS201311012253235105129015_ST/0.png)
.
(1)求sinα、cosα;
(2)求
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225323510512928/SYS201311012253235105129015_ST/1.png)
.
查看答案
将边长为1m正三角形薄片,沿一条平行于底边的直线剪成两块,其中一块是梯形,记
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225323510512928/SYS201311012253235105129014_ST/0.png)
,则S的最小值是
.
查看答案
首项为a
1的等比数列{a
n}的前n项和的极限为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225323510512928/SYS201311012253235105129012_ST/0.png)
,则首项a
1的取值范围是
.
查看答案